diff --git a/lib/sw_services/xilskey/data/xilskey.mld b/lib/sw_services/xilskey/data/xilskey.mld
index 6e7baa9f..c7aaae97 100755
--- a/lib/sw_services/xilskey/data/xilskey.mld
+++ b/lib/sw_services/xilskey/data/xilskey.mld
@@ -38,6 +38,7 @@
 # 3.00  vns  31/07/15 Support is being added for Ultrascale and hence
 #                     supported processors are a9 and microblaze too.
 #                     so supported peripherals option has been removed.
+# 4.00  vns  09/10/15 Added DFT control bit programming for efusePS Zynq.
 #
 ##############################################################################
 
@@ -48,6 +49,6 @@ BEGIN LIBRARY xilskey
   OPTION REQUIRES_OS = (standalone);
   OPTION APP_LINKER_FLAGS = "-Wl,--start-group,-lxilskey,-lxil,-lgcc,-lc,--end-group";
   OPTION desc = "Xilinx Secure Key Library ";
-  OPTION VERSION = 3.0;
+  OPTION VERSION = 4.0;
   OPTION NAME = xilskey;
 END LIBRARY